private void loadDdlPurchasOrder()
    {
        PurchaseOrderXMLReader xmlReader = new PurchaseOrderXMLReader();
        List<String> purchaseOrders = xmlReader.getFileNames();

        ddlPurchaseOrder.DataSource = purchaseOrders;
        ddlPurchaseOrder.DataBind();
    }
 protected void btnSend_Click(object sender, EventArgs e)
 {
     PurchaseOrderXMLReader xmlReader = new PurchaseOrderXMLReader();
     String purchaseOrder = xmlReader.getXmlFile(ddlPurchaseOrder.SelectedValue);
     PurchseOrderXMLManager xmlManager = new PurchseOrderXMLManager(purchaseOrder, ddlPurchaseOrder.SelectedValue);
     xmlManager.sendPurchaseOrderToSupplier();
     xmlManager.moveXMLDocToArchive();
     loadDdlPurchasOrder();
     getXmlData(ddlPurchaseOrder.SelectedValue);
     lblMsg.Text = "Message sent and purchase order moved to archive directory.";
 }
    private void getXmlData(String xmlFile)
    {
        PurchaseOrderXMLReader xmlReader = new PurchaseOrderXMLReader();

        if (xmlFile != null || xmlFile != "")
        {
            XmlDataSource1.DataFile = xmlReader.getXmlFile(xmlFile);
            XmlDocument doc = XmlDataSource1.GetXmlDocument();
            XmlNodeList manufacturerName = doc.GetElementsByTagName("name");
            lblCompanyName.Text = manufacturerName[0].InnerXml;
            XmlDataSource1.XPath = "/PurchaseOrder/items/PurchaseOrderItem";
            XmlDataSource1.DataBind();
        }
    }